Improvement in water-proof piano-covers



No. 111,535. PATENTED FEB. 7, 1871. r H. F. HERKNER & J. W. POST.

WATERPROOF PIANOOOVER.

TH: NORRIS PETZRS cc, wasmrvcron, n. c.

Letters Patent No. 111,535,.dated February 1, m1.

'IM'PR OVEMENT I N WATER-PROOF PIANO-COVERS.

n. Schedule referred to in these Letters Patent and making part of the' lame.

We, HENRY F. finnnnmnof the city, county, and

State of New York, and JARED W. Pos'r, ofthe city of Brooklyn, county of Kings and State of New York,

. have invented a certain Imprm-"ement in the Manufacture of \Vater-lroof Piano-Covers, of which the fob covers'as' an'improvement on the ordinal'y'\vutei'-' proof piano-co vers now in use. V

In making water-proof piano-cm'ers by the process hitherto in use, to breadths of- Oanton flannel, which .is a fabric of-aboutone yard, or tliei-eabout, in width,

are cut to a suitable length for a cover and trimmed straight, and the two edges sewed together lengthwise, forming av joint in the middle of the cover. Great care is necessary in sewing to prevent. the stitches from showing on the facc-side of the cover,

and also to prevent theQpuekering of the scam, which,'

if it occurs, renders the'cover imperfect.

The flannel on each side of the seam serves as a lap, and is thoroughly coated with waterproof ccinen t, then turned over so as to fasten the edges of the lap down. 7

Upon the application of the last coat of. cement to the laps, a narrow stiip of flannel having been previously prepared with several coats of water-proof cement, is placed upon and over the prepared searn lengthwise of the cover, which strip must be laid straight and smooth. r

The whole is then pressed down with iron rollers. and placed within the heater to cure and dry.

By this method'a ridge is formed in the center of v the cover, which is objectionable in appearanceand apt to deface the piano, while the process is tedious, -diflicult, and expensive.

- as follows:

We form a fabric of the nature of Canton flannel, but of a width of eighty-five to ninety inches-any. ywid th suitable for thc'lcngtli or width of a piano-cover- These objections are obviated and a superior artiole produced by our improved process, which consists the-fabric being woven in the usual manner, of suit-able dimensions, and inpieces oi'any desired length to form a considerable number of covers. I

The flannel is then stretched over a series of rollers, by which it is kept perfectly straight and tight, and the India-rubber or other water-proof compound is then applied to the plain or nnuappcd side by a brush or other. suitable means, the cloth being passed along .ne'r a series of steam-pipes, by which it is dried, to-

prevent the surfaces adhering when rolled.

.A- second coat is applied inthe same manner, which may be dusted with flocks 0r fine wool, if desired, to give such a finish. It is dried and passed between pressure-rollers. It is then placed in the heater to f cure or vuleanize the rubbercomponnd in the ordinary way.

WVhen the process is completed it is only necessary to cut the piece into the required length to form marketable water-proof piano-covers, seamless, and of uniform texture and substance throughout. I

' This method produces an article of superior beauty and durability, and at considerable less cost than the seamed covers hitherto made.

Claim.

A new article of manufacture, a seamless waterproof piano-over, produced in the manner and by the means substantially as set forth.

HENRY 1*. HERKNER. F 8% JARED W. POST. s.

-Witnesses CHARLES Goonmon- Con, LOUIS W. l nos'r.

ros'r, or BROOKLYN:

s GHIIIiBD $21M fiititlti (time w A HENRY 1+. .IlERKNElt, OF NEW YORK, AND JARED NEW YORK. 

